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Electric Circuits

Electric Circuits
Rms value is defined based on which of the following?

 Current
 Charge transfer
 Voltage
 Heating effect

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Electric Circuits
Efficiency of electrical machines should be calculated by measuring

 losses and output.
 output and input.
 losses.
 losses and input.

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Electric Circuits
Two sinusoidal quantities are said to be in phase quadrature, when their phase difference is

 30o.
 45o.
 90o.
 0o.

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Electric Circuits
In series RLC circuit what is the power factor just above the resonance frequency?

 Zero
 Leading
 Lagging
 Unity

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Electric Circuits
The current through the 2 KΩ resistance ( rest resitances are all 1 ohm each ) in the circuit shown in diagram

 0 mA.
 1 mA.
 6 mA.
 2 mA.

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Electric Circuits
If a capacitors of capacitance 100 μF is connected across a voltage source of 10 V, then what will be the energy stored in that capacitor?

 5 × 10 - 2 Joule.
 5 × 10 - 3 Joule.
 10 × 10 - 3 Joule.
 10 × 10 6 Joule.

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